diff --git a/src/main/java/com/hbm/tileentity/machine/TileEntityCoreEmitter.java b/src/main/java/com/hbm/tileentity/machine/TileEntityCoreEmitter.java
index 95b972949..3f0f6bba4 100644
--- a/src/main/java/com/hbm/tileentity/machine/TileEntityCoreEmitter.java
+++ b/src/main/java/com/hbm/tileentity/machine/TileEntityCoreEmitter.java
@@ -43,6 +43,7 @@ public class TileEntityCoreEmitter extends TileEntityMachineBase implements IEne
 	public boolean isOn;
 	public FluidTank tank;
 	public long prev;
+	public static long maxJoules = Long.MAX_VALUE / 100_000;
 	
 	public static final int range = 50;
 
@@ -98,6 +99,8 @@ public class TileEntityCoreEmitter extends TileEntityMachineBase implements IEne
 					ForgeDirection dir = ForgeDirection.getOrientation(this.getBlockMetadata());
 					for(int i = 1; i <= range; i++) {
 						
+						if(out > maxJoules) out = maxJoules;
+						
 						beam = i;
 		
 						int x = xCoord + dir.offsetX * i;
diff --git a/src/main/java/com/hbm/tileentity/machine/storage/TileEntityMachineFENSU.java b/src/main/java/com/hbm/tileentity/machine/storage/TileEntityMachineFENSU.java
index b936d41b8..eea2287d6 100644
--- a/src/main/java/com/hbm/tileentity/machine/storage/TileEntityMachineFENSU.java
+++ b/src/main/java/com/hbm/tileentity/machine/storage/TileEntityMachineFENSU.java
@@ -146,4 +146,30 @@ public class TileEntityMachineFENSU extends TileEntityMachineBattery {
 	public double getMaxRenderDistanceSquared() {
 		return 65536.0D;
 	}
+	
+	@Override
+	public long transferPower(long power) {
+		
+		long overshoot = 0;
+		
+		// if power exceeds our transfer limit, truncate
+		if(power > maxTransfer) {
+			overshoot += power - maxTransfer;
+			power = maxTransfer;
+		}
+		
+		// this check is in essence the same as the default implementation, but re-arranged to never overflow the int64 range
+		// if the remaining power exceeds the power cap, truncate again
+		long freespace = this.getMaxPower() - this.getPower();
+		
+		if(freespace < power) {
+			overshoot += power - freespace;
+			power = freespace;
+		}
+		
+		// what remains is sure to not exceed the transfer limit and the power cap (and therefore the int64 range)
+		this.setPower(this.getPower() + power);
+		
+		return overshoot;
+	}
 }
diff --git a/src/main/resources/assets/hbm/textures/gui/processing/gui_catalytic_reformer.png b/src/main/resources/assets/hbm/textures/gui/processing/gui_catalytic_reformer.png
index 27b5d21fd..077d004fd 100644
Binary files a/src/main/resources/assets/hbm/textures/gui/processing/gui_catalytic_reformer.png and b/src/main/resources/assets/hbm/textures/gui/processing/gui_catalytic_reformer.png differ
diff --git a/src/main/resources/assets/hbm/textures/gui/reactors/gui_pwr.png b/src/main/resources/assets/hbm/textures/gui/reactors/gui_pwr.png
new file mode 100644
index 000000000..7542ad6f4
Binary files /dev/null and b/src/main/resources/assets/hbm/textures/gui/reactors/gui_pwr.png differ